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Super Minimal Steel and Concrete Villa with an Unusual Facade

A cross-hatch covering adds a playful note to a home in Ljubljana, Slovenia.

Rok Oman of OFIS Architects started the renovation of what would become Villa Criss-Cross by tackling a thorny site issue. Since it is located close to the street and perpendicular to the old Roman wall near Ljubljana's ancient fortress, zoning laws require buildings to be set four meters back from the street. By maintaining the original wall and adding steel panels, Oman grandfathered in the new structure and maintained the original orientation.

Perforated steel panels provide a contrasting sense of roughness and lightness, which Oman played with throughout the home's design. The skin adds transparency and graphic energy to the exterior, though Oman did worry about people fixating on the tic-tac-toe element. "It's like calling a rectangular building the Tetris house," he says.

The home's exposed concrete skeleton, wrapped in oak, creates a warm, layered space for living. Oman split the floors by function, with common areas on the ground level, followed by the kids' rooms and then a third-floor suite for the parents.

The view from the living room shows how the exterior allows for plenty of light yet maintains privacy. The structural steel brace outside repeats the cross-hatch motif, and a cantilevered overhang provides a shaded outdoor patio underneath.

Rok Oman of OFIS Architects started the renovation of what would become Villa Criss-Cross by tackling a thorny site issue. Since it is located close to the street and perpendicular to the old Roman wall near Ljubljana's ancient fortress, zoning laws require buildings to be set four meters back from the street. By maintaining the original wall and adding steel panels, Oman grandfathered in the new structure and maintained the original orientation.

Architect Rok Oman expects the tic-tac-toe comparisons anytime he shows visitors Villa Criss-Cross, a renovated home in Mirje, a historic district in the Slovenian capital of Ljubljana. The cross-hatch pattern showcased in the building's steel-paneled facade references a pyramid built into the city's stone wall by Jože Plečnik, a famed architect whose Baroque work has become an urban signature. Oman wanted to create similar sense of silent beauty out of rough material with this renovation, which juxtaposes wood, concrete, and steel to create lightness and space. "The panels are perforated, so you get a sense of transparency and can still see the sun," he says. "In this way, we wanted to make the envelope seem light, while recreating the roughness of the former plaster facade." Oman expounded on the textures and motifs of Villa Criss-Cross, which looks down the street at Plečnik's famous pyramid.

Today, we kicked off this year’s annual Dwell on Design at the LA Convention Center, which will continue through Sunday, June 26th. Though we’ve been hosting this extensive event for years, this time around is particularly special.